Hot-rolling-mill layout



Sept. 23, 1930.

A. R. M ARTHUR HOT ROLLING MILL LAYOUT- Filed Oct. 19, 1928 ooooocoo OOOOOOOOO oooooooo ooooooooo ooooo ooooa 00000 00000 00000 00000 0000 0 00 000 00000 00000 00000 Patented Sept. 23, 1930 UNITED STATES PATENT OFFICE ARTHUR R. McAR-THUR, OF GARY, INDIANA, ASSIGNOR TO AMERICAN SHEET AND TIN PLATE COMPANY, A CORPORATION OF NEW JERSEY nor-noLLmo-mnn LAYOUT this invention only three men, namely, a

furnace man, a roller and a doubler and shear operator are necessary to operate the mill at a materially higher speed than that at which thesilijrnen formerly operated it.

In the :drawings The figureshows a diagrammatic layout of a hot mill constructed in accordance with this invention, the continuous heating furnace being shown in section for clearness.

' Referring more particularly to the drawing's, the numeral 2 designates a continuous pack heating furnace having a system of disk-type conveying rollers 3 therein for conveying the packs through the furnace.

A gravity conveyor 4 is positioned at the forward or discharge end of the furnace and is adaptedto receive'the heated packs and deliver them at a point closely adjacent to the mill 5, where they will be grasped by the roller and fed through the mill, As the packs pass through the mill they will be received by the-mechanical catcher 6 and returned over themill to the roller successive times for re-rollinguntil they are reduced to the desired gage "and length, after which the catcher willautomatically operate to pass the pack rearwardly onto a reversible receiving conveyor 7. y I

The conveyor 7 is under thecontrol of the roller and will be 'operated in a counterclockwise direction jwhen rolling packs of fours and in aclockwise direction when roll-'- ing packs of eights. 1

When rolling packsofeig'ht's, the finished packs will be delivered by the conveyor]? to the right-hand side of the mill and piled, s

When rolling packs of fours, which must be opened, doubled and sheared, the conveyor 7 whlch is operating in a counterclockwise direction, will deliver the packs to the left- 3 hand side of the mill and onto a conveyor 9 which extends at right angles to the conveyor 7 and substantially parallel with the line of travel of the packs through the mill.

The conveyor 9 will be operated to convey the packs of fours in a reverse direction ortoward the mill, and will deliver the packs into the bite of suitable "feed-in pinch rollers 10 of a pack opening machine 12. The packs are then passed through the pack opening machine so as to open the packs, that is, separate the several sheets of the pack, and are delivered onto a gravity conveyor 13 which will convey the o ened packs beyond the mill and into posit1on to be received by the doubler and shear operator.

After the packs are delivered from the conveyer 13 they'are grasped by the doubler and sheared packs rearwardly and. deliver them onto a roller or anti-friction charging table 17 where they will be grasped by the furnace operator and charged into the fur nace for reheating.

\Vhile' I have shown and described certain specific constructions of apparatus used in :making'up the mill layout of this invention it will be understood that I do not wish to be .limited thereto as various forms of modified apparatus maybe used to form the mill layout, as defined in the; appended claims, I

' I claim v c hot milllayout comprising, in combination, a heating furnace, a mill arranged in front ofand inhne with the discharge end of said furnace, a conveyor for delivering packs of sheets from the discharge end of said furnace toapoint adjacent said mill,a mechanical catcher for catching and returning said packs on the rear or catcher side of said mill and adapted to feed said packs rearwardly after they have been rolled to a predetermined length, a reversible convey-orarranged at the rear and transversely of said catcher and adapted to receive the packs from said catcher, said conveyer being adapted to be operated in one direction when rolling packs of eights and in the reverse direction when rolling packs of fours which are to be doubled and reheated and re-rolled, a third conveyor extending at substantially right angles to said second named conveyor and substantially parallel with said catcher and adapted to receive the packs of fours from said second named conveyor, a pack opening machine in line with and at the discharge end of said last named conveyor and adapted to receive and work the packs delivered by said last named conveyor so as to open said packs, a conveyor located at the discharge end of said pack opening machine and adapted to receive and convey the opened packs beyond the mill and toward the furnace, doubling and shearing apparatus located to the one side of and adjacent the discharge end of said gravity conveyor through which the packs are adapted to be passed manually, and a conveyor extending from a point adjacent said doubling and shearing apparatus to a point adjacent the charging end of said heating furnace adapted to receive the'packs from the operator'of said doubler and shearing apparatus and to deliver said packs into position to be charged into said furnace.

2. A hot mill layout com rising, in combi nation, a heating furnace or heating packs of sheets, a mill arranged forward of the discharge end of said furnace, a mechanical catcher for catching and returning said packs on the rear or catcher side of said mill and adapted to feed said packs away from said means for conveying the doubled and sheared packs from said doubling and shearing apparatus to a point adjacent the charging end of said furnace. 4

3. A hot mill layout comprising, in combination, a continuous heating furnace, for heating packs of sheets, a mill arrangedforward of the discharge end of said furnace, means for conveying the heated packs from said heating furnace to point adjacent said mill, a mechanical catcher for catching and returningsaid packs on the rear or catcher side of said mill and adapted to feed said packs away from said mill after they have been rolled to a predetermined length, a reversible conveyor arranged at the rear and transverselylof said catcher and adapted to receive the packs from said catcher, said conveyor being'adapted to I be operated in oneifdirection when rol ing packsof eights and in'the reverse direction When rolling 'packs of foursfivhich a-re to be doubled and .'reheat'ed and re-rolled, a #icond conveyor adapted "to receive the packs of fours from said.firstinanied conveyor, apack opening. machine'inline with and'at the discharge end of said last named conveyor and adapted to receive and Work the packs deli-v5 ered by said last named conveyorso as toope r said packs, doubling and-shearing apparatus,

means for delivering the opened packs from" sa d opening apparatus'to apoint adjacent said doubling and shearingap aratuSQan/d" meansfor conveying the-double and sheared packs from saiddoubling and shearing 8,1). paratus' to a point adjacent thecharging end of said. furnace.

In testimonywhereof, I have hereunto set my hand. a v ,ARTHURTR, MCARTHUR.

mill after they have been rolled to a predetermined length, a reversible conveyor arran ed at therear and transversely of said catc er and adapted to receive the packs from said catcher, said conveyer being ada ted to be,

operated in one direction when rol ing packs of sights and in the reverse direction when rolling packs of fourswhich are to be doubled and reheated and re-rolled, a second conveyor adapted to receive the packs of fours from said first named conveyor, a pack opening machine in line with and atthe dischargeend of said last 'nalned conveyer andfadapted to receive and work fthe packs delivered-by said last named'conveyor soas to open said packs, doubhng and shearing cap aratus,

means for delivering the opened; pac s from said opening apparatus-to point adjacent said doubling and shearing apparatus, and. 

